Full-Engine Balancing

Learn about the Balance of Performance (BoP) in Gran Turismo games. Understand how power and weight adjustments affect cars and create a balanced playing field for races.

Hey there! So, you're diving into the world of Gran Turismo and want to get a handle on "Full-Engine Balancing." That's a cool goal! However, the info I have here is actually about something called "Balance of Performance," or BoP for short. It's a mechanic found in games like Gran Turismo 6, Gran Turismo Sport, and Gran Turismo 7, not specifically "Full-Engine Balancing" as a tune-up you do yourself in GT2. Think of BoP as Polyphony Digital's way of making sure races are fair. They adjust the power and weight of cars within a certain class to keep things competitive. It's like a hidden hand making sure no single car totally dominates. In GT6, this showed up in Quick Match modes. You might have seen cars with arrows next to their horsepower, showing if it was boosted or reduced, and sometimes extra weight (ballast) was added. The specific adjustments could change each time an event popped up. For GT Sport and GT7, BoP is a bigger deal. It applies to most car classes (except Gr.X in Sport) and gets updated with major game patches or even server maintenance. It can affect things like tire and fuel consumption too. If you tune a car like an N class vehicle in GT6 to fit into different performance tiers (say, from N400 down to N300 or up to N500), it's subject to BoP in all those tiers. In GT7, cars not in racing classes stick to a Performance Points limit instead. When you're in Sport Mode in GT Sport and GT7, BoP is usually on by default, and you can't tweak things like suspension or gear ratios. But, in online lobbies, you can set it up so BoP is enabled and you *can* make adjustments, though GT7 added this flexibility later on. It's even possible to use BoP settings for offline Time Trials. Interestingly, GT7 sometimes favors a manufacturer's newer cars in its BoP calculations. And in 2025, the Gr.B class got a bit more complex, with older rally cars like the Toyota Celica GT-FOUR Rally Car (ST205) '95 and Subaru Impreza Rally Car '98 being balanced separately from newer Gr.B cars, making them less competitive in the main Gr.B class but more balanced against each other. GT7 also has a neat system where BoP is adjusted based on the track type: * Low-speed BoP tracks: Alsace, Autodrome Lago Maggiore (all layouts except East) * Mid-speed BoP tracks: Autodrome Lago Maggiore (East layout), Circuit de Barcelona-Catalunya (all layouts), Circuit de Spa-Francorchamps (all layouts), Willow Springs International Raceway (all layouts) * High-speed BoP tracks: 24 Heures du Mans Racing Circuit (all layouts), Daytona International Speedway (all layouts), Nürburgring Nordschleife (all layouts), Silverstone Circuit (all layouts), WeatherTech Raceway Laguna Seca (all layouts) Keep in mind, reverse track layouts usually follow the same BoP as their standard counterparts. So, while you won't be doing "Full-Engine Balancing" yourself in GT2 based on this info, understanding BoP is key to mastering the later Gran Turismo games!